v2.4.0.6
Employee Benefit Plans (Expected Benefit Payments Associated with the Pension and Postretirement Benefit Plans) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2012
Pension
 
2013 $ 136
2014 137
2015 134
2016 137
2017 142
2018-2022 773
Postretirement
 
2013 6
2014 6
2015 7
2016 7
2017 8
2018-2022 $ 47